john brennan goes before the senate for confirmation as cia director on thursday, where he's expected to face tough questions about the targeted killings. as one of the chief architects of the controversial obama program, he's defended the program in the past. >> we conduct targeted strikes, because they are necessary to mitigate an actual ongoing threat, to stop plots, prevent future attacks, and to save american lives. >> now, a bipartisan group of senators led by democrats wants to see a classified version of this document. there is a classified legal opinion, they believe there's more information in there they want to review. they say if they do not get it, some of the nominations for national security officials, perhaps even brennan's, maybe held up in the senate. wolf? >> all right, barbara, thank you. later this hour, we'll have a major debate on the president's policies on these drones' so-called kill list, including the killing of americans. that's coming up later this hour. kate balduan is here. you've got some new details on what happened 24 hours ago, almost exactly. >> on